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In the Minkowski universe, the time coordinate of one coordinate system depends on both the time and space coordinates of another relatively moving system according to a rule that forms the essential alteration required for Einstein’s special theory of relativity; according to Einstein’s theory there is no…

application to

The four-dimensional space is called Minkowski space-time and the curve a world line. It is frequently useful to represent physical processes by space-time diagrams in which time runs vertically and the spatial coordinates run horizontally. Of course, since space-time is four-dimensional, at least one of the spatial dimensions in the…

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